Disabling garbage collector

Hello,

for some reason, I would like to disable the garbage collector of LispWorks, permanently for a given session (I mean not only for a given function call, but generally). I found gc-off somewhere but I can figure out how to use it. Could somebody please help me ?

Thank you,

Sascha Van Cauwelaert

RE: Disabling garbage collector

Perhaps just call (hcl:avoid-gc)
See http://www.lispworks.com/documentation/lw60/LW/html/lw-704.htm

Regards,
Eivind

> -----Original Message-----
> From: owner-lisp-hug@lispworks.com [mailto:owner-lisp-hug@lispworks.com]
> On Behalf Of Sascha Van Cauwelaert
> Sent: 7. mai 2011 22:11
> To: lisp-hug@lispworks.com
> Subject: Disabling garbage collector
> 
> 
> Hello,
> 
> for some reason, I would like to disable the garbage collector of
LispWorks,
> permanently for a given session (I mean not only for a given function
call, but
> generally). I found gc-off somewhere but I can figure out how to use it.
Could
> somebody please help me ?
> 
> Thank you,
> 
> Sascha Van Cauwelaert

Re: Disabling garbage collector

Hi,

In case someone is looking for a quick answer for the 64-bit case in
the future (and also in hopes that someone will correct me if my
solution is wrong), I set a "high GC threshold" of 2 gigabytes using
the following:

    (system:set-blocking-gen-num 3 :gc-threshold (expt 2 31))
    (system:set-blocking-gen-num 2 :gc-threshold (expt 2 31))
    (system:set-blocking-gen-num 1 :gc-threshold (expt 2 31))
    (system:set-blocking-gen-num 0 :gc-threshold (expt 2 31))

Thanks,
David

2011/5/7 Sascha Van Cauwelaert <sascha.vancauwelaert@gmail.com>:
>
> Thank you for your quick answer but I would really like to find how to disable it totally (maybe with gc-off ?)
>
> Le 7 mai 2011 à 22:23, Eivind Midtgård a écrit :
>
>> Perhaps just call (hcl:avoid-gc)
>> See http://www.lispworks.com/documentation/lw60/LW/html/lw-704.htm
>>
>> Regards,
>> Eivind
>>
>>> -----Original Message-----
>>> From: owner-lisp-hug@lispworks.com [mailto:owner-lisp-hug@lispworks.com]
>>> On Behalf Of Sascha Van Cauwelaert
>>> Sent: 7. mai 2011 22:11
>>> To: lisp-hug@lispworks.com
>>> Subject: Disabling garbage collector
>>>
>>>
>>> Hello,
>>>
>>> for some reason, I would like to disable the garbage collector of
>> LispWorks,
>>> permanently for a given session (I mean not only for a given function
>> call, but
>>> generally). I found gc-off somewhere but I can figure out how to use it..
>> Could
>>> somebody please help me ?
>>>
>>> Thank you,
>>>
>>> Sascha Van Cauwelaert
>>
>
>

Re: Disabling garbage collector

The gc-threshold doesn't cause generation 0 to expand so those settings don't
stop gc -- in fact they might cause more gc, because it will never promote
from 0 to 1.

We recommend you try

(system:set-blocking-gen-num 0 :do-gc nil)

You can use hcl:extended-time to see how much time is spent in gc.

-- 
Martin Simmons
LispWorks Ltd
http://www.lispworks.com/



>>>>> On Fri, 13 May 2011 08:46:45 -0500, David L Rager said:
> 
> Hi,
> 
> In case someone is looking for a quick answer for the 64-bit case in
> the future (and also in hopes that someone will correct me if my
> solution is wrong), I set a "high GC threshold" of 2 gigabytes using
> the following:
> 
>     (system:set-blocking-gen-num 3 :gc-threshold (expt 2 31))
>     (system:set-blocking-gen-num 2 :gc-threshold (expt 2 31))
>     (system:set-blocking-gen-num 1 :gc-threshold (expt 2 31))
>     (system:set-blocking-gen-num 0 :gc-threshold (expt 2 31))
> 
> Thanks,
> David
> 
> 2011/5/7 Sascha Van Cauwelaert <sascha.vancauwelaert@gmail.com>:
> >
> > Thank you for your quick answer but I would really like to find how to disable it totally (maybe with gc-off ?)
> >
> > Le 7 mai 2011 à 22:23, Eivind Midtgård a écrit :
> >
> >> Perhaps just call (hcl:avoid-gc)
> >> See http://www.lispworks.com/documentation/lw60/LW/html/lw-704.htm
> >>
> >> Regards,
> >> Eivind
> >>
> >>> -----Original Message-----
> >>> From: owner-lisp-hug@lispworks.com [mailto:owner-lisp-hug@lispworks..com]
> >>> On Behalf Of Sascha Van Cauwelaert
> >>> Sent: 7. mai 2011 22:11
> >>> To: lisp-hug@lispworks.com
> >>> Subject: Disabling garbage collector
> >>>
> >>>
> >>> Hello,
> >>>
> >>> for some reason, I would like to disable the garbage collector of
> >> LispWorks,
> >>> permanently for a given session (I mean not only for a given function
> >> call, but
> >>> generally). I found gc-off somewhere but I can figure out how to use it.
> >> Could
> >>> somebody please help me ?
> >>>
> >>> Thank you,
> >>>
> >>> Sascha Van Cauwelaert
> >>
> >
> >
>